Nelson forecast › Recent cloud comparisons
Forecast versus observed cloud
Nelson · 24 recorded nights in the last 30 days
Published matched dark hours from the last 30 days, not a census of complete nights. Missing nights remain unknown. This does not validate seeing, smoke, transparency or the overall score.
Scroll the table sideways for all columns. Cloud values are averages over matched hours.
| Night | Matched hours | Forecast cloud | Observed cloud | Call matches | Discrepancies |
|---|---|---|---|---|---|
| 2026-09-17 | 9 | 73% | 40% | 6 | 3 |
| 2026-09-16 | 9 | 96% | 100% | 9 | 0 |
| 2026-09-15 | 9 | 15% | 28% | 6 | 3 |
| 2026-09-14 | 9 | 27% | 10% | 7 | 2 |
| 2026-09-13 | 10 | 36% | 18% | 6 | 4 |
| 2026-09-12 | 10 | 44% | 0% | 3 | 7 |
| 2026-09-11 | 10 | 14% | 2% | 9 | 1 |
| 2026-09-10 | 10 | 32% | 36% | 6 | 4 |
| 2026-09-09 | 10 | 71% | 81% | 7 | 3 |
| 2026-09-08 | 10 | 59% | 66% | 7 | 3 |
| 2026-09-07 | 9 | 46% | 40% | 2 | 7 |
| 2026-09-06 | 10 | 100% | 96% | 10 | 0 |
| 2026-09-05 | 10 | 91% | 89% | 10 | 0 |
| 2026-09-04 | 10 | 46% | 3% | 0 | 10 |
| 2026-09-03 | 10 | 57% | 63% | 9 | 1 |
| 2026-09-02 | 10 | 82% | 74% | 8 | 2 |
| 2026-09-01 | 10 | 55% | 49% | 6 | 4 |
| 2026-08-31 | 10 | 25% | 22% | 9 | 1 |
| 2026-08-30 | 10 | 51% | 0% | 3 | 7 |
| 2026-08-29 | 10 | 40% | 9% | 5 | 5 |
| 2026-08-28 | 10 | 36% | 17% | 7 | 3 |
| 2026-08-27 | 10 | 98% | 98% | 10 | 0 |
| 2026-08-26 | 10 | 99% | 94% | 10 | 0 |
| 2026-08-25 | 10 | 54% | 72% | 7 | 3 |